{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6AG1321-1FF01-2AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"6AG1321-1FF01-2AA0","canonicalUrl":"https://aoctrl.com/siemens/6AG1321-1FF01-2AA0","factsUrl":"https://aoctrl.com/api/mcp/products/6AG1321-1FF01-2AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIPLUS S7-300 digital input module, 6AG1321-1FF01-2AA0, 8 AC inputs, 120/230 VAC, -40 to 70 °C, EN 50155 railway certified.","salesMarkdown":"## Railway-rated 8-channel AC input for extended-temperature S7-300 racks The Siemens 6AG1321-1FF01-2AA0 is an 8-channel digital input module from the SIPLUS S7-300 family, designed for AC control voltages of 120/230 VAC at 47 to 63 Hz. It accepts a signal \"1\" from 79 to 264 VAC and a signal \"0\" from 0 to 40 VAC, with typical input currents of 6.5 mA at 120 V and 11 mA at 230 V. It carries EN 50155 certification for rolling-stock applications (sections 4, 5, 12; T1, Category 1, Class A/B per EN 50155:2007). ## Lifecycle and sourcing — active, quoted to order Approvals include UL (File E239877), CE, KC, EAC, and RCM (formerly C-TICK). The EN 50155 certification covers railway rolling-stock environments — temperature class T1, Category 1, Class A/B — making this module a documented spare for rail control cabinets. The input filter is fixed (not parameterizable) with a 25 ms typical on-delay and off-delay. There are no diagnostic alarms, hardware interrupts, or group error LEDs — the only status indication is a green LED per channel. This is a straightforward, no-frills input module suited for simple AC sensing where fast response is not required.","metaTitle":"Siemens 6AG1321-1FF01-2AA0 Digital Input Module, 8×AC","metaDescription":"Siemens SIPLUS S7-300 digital input module 6AG1321-1FF01-2AA0. 8 AC inputs, 120/230V, -40 to 70°C, EN 50155 rail certified. Active production, quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Digital Input Modules"],"specifications":{"Max.":"70 °C","Min.":"-40 °C","Depth":"120 mm","Width":"40 mm","title":"6AG1321-1FF01-2AA0","Alarms":"No","Height":"125 mm","CE mark":"Yes","EN 50155":"Yes; Sections 4, 5 and 12; no further agreements apply; T1, Category 1, Class A/B, EN 50155:2007 (see SIOS entry 109755985)","KC approval":"Yes","UL approval":"Yes; File E239877","description":"SIPLUS S7-300 SM 321 20-pole based on 6ES7321-1FF01-0AA0 with conformal coating, -40…+70 °C, digital input isolated 8 DI, 120 V/230 V AC","2-Wire Sensor":"Yes","For Signal \"0\"":"0 to 40V","For Signal \"1\"":"79 to 264V","Shielded, Max.":"1 000 m","Parameterizable":"No","Weight, approx.":"240 g","lifecycle_stage":"current","Diagnostic alarm":"No","Power loss, typ.":"4.9 W","Rated value (AC)":"230 V; 120/230 V AC (47 ... 63 Hz)","Unshielded, Max.":"600 m","Hardware interrupt":"No","up to 40 °C, max.":"8","up to 60 °C, max.":"8; up to 70 °C","At \"0\" To \"1\", Max.":"25 ms","At \"1\" To \"0\", Max.":"25 ms","Between The Channels":"No","Diagnostics function":"No","For Signal \"1\", Typ.":"6.5 mA; (120 V); 11 mA (230 V)","Group error SF (red)":"No","EAC (formerly Gost-R)":"Yes","Isolation tested with":"4 000 V DC","RCM (formerly C-TICK)":"Yes","Type of input voltage":"AC","Number of digital inputs":"8","Required Front Connector":"20-pin","from backplane bus 5 V DC, max.":"29 mA","Between The Channels, In Groups Of":"2","Between The Channels And Backplane Bus":"Yes; Optocoupler","Status indicator digital input (green)":"Yes","Installation altitude above sea level, max.":"2 000 m","Permissible Quiescent Current (2-Wire Sensor), Max.":"2 mA","Ambient air temperature-barometric pressure-altitude":"Tmin ... Tmax at 1 140 hPa ... 795 hPa (-1 000 m ... +2 000 m)","Environmental conditions for process, measuring and control systems acc. to ANSI/ISA-71.04":"Yes; Level GX group A/B (excluding trichlorethylene; harmful gas concentrations up to the limits of EN 60721-3-3 class 3C4 permissible); level LC3 (salt spray) and level LB3 (oil)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$198.12","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/23e4d0eb62a39b27208381a02ef03358.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=66361&mlfb=6AG1321-1FF01-2AA0"},"ai":{"faq":[{"question":"What is the difference between 6AG1321-1FF01-2AA0 and 6ES7321-1FF01-0AA0?","answer":"The 6AG1321-1FF01-2AA0 is the SIPLUS extended-temperature variant of the standard 6ES7321-1FF01-0AA0. Functionally, both provide 8 AC inputs at 120/230 VAC with the same electrical characteristics."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6AG1321-1FF01-2AA0","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/siemens/6AG1321-1FF01-2AA0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}